Deep Sky Object in Summer
NGC6572(Planetary Nebula in Ophiuchus)
|Date & Time: ||Jun 2 2001, 23:40 JST(+0900), 40sec. exposed 6shots
|Optical: ||Meade 25cm(10") Schmidt-Cassegrain, afocal method with LV12mm eyepiece
|Synthesized focal length f=2583mm (equivalent f=15222mm in 35mm film format)|
|Auto-guided with Meade LX200 Equatorial
|Digital Camera: ||CASIO QV2800UX
|Location: ||Ooizumi vil., Yamanashi pref.
|Camera Settings: ||Mode.....1600×1200 FINE|
|Lens.....f=12.4mm (equivalent f=83mm in 35mm film format), Stop: F3.2|
|CCD sensitivity.....ISO160, White Balance.....Daylight|
This image shows you a compact but easy-to-seeing planetary nebula of NGC6572,
which is positioned in eastern region of Ophiuchus.
You can find it around 11 degrees SE of alpha Oph, Ras Alhague.
The nebula has an apparent size of about 15 arc seconds, you can distinguish NGC6572 from other stars and detect the nebula having bluishcolor only with compact telescopes,
but no striking structures detected. NGC6572 is a remnant of star 2500 light years away.
|NGC6572 / Planetary Nebula, type IIa|
|R.A.||18h 12m 6.0s (2000.0)|
|Dec.||+06° 51' 00" (2000.0)|
|Real Size||0.19×0.16 light yrs.|
|Distance||2470 light yrs.|